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Related papers: CKS-space in terms of growth functions

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Let $\ce^{*}$ be the space of tempered distributions and $\m$ be the standard Gaussian measure on $\ce^{*}$. Being motivated by the distribution theory on infinite dimensional space by Cochran, Kuo and Sengupta (CKS) \cite{cks}, Asai, Kubo…

Functional Analysis · Mathematics 2007-05-23 Nobuhiro Asai

We prove a characterization theorem for the test functions in a CKS-space. Some crucial ideas concerning the growth condition are given.

Functional Analysis · Mathematics 2007-05-23 Nobuhiro Asai , Izumi Kubo , Hui-Hsiung Kuo

Let $u$ be a positive continuous function on $[0, \infty)$ satisfying the conditions: (i) $\lim_{r\to\infty} r^{-1/2}\log u(r)=\infty$, (ii) $\inf_{r\geq 0} u(r)=1$, (iii) $\lim_{r\to \infty}\break r^{-1}\log u(r)<\infty$, (iv) the function…

Functional Analysis · Mathematics 2007-05-23 Nobuhiro Asai , Izumi Kubo , Hui-Hsiung Kuo

In this paper we will develop a systematic method to answer the questions $(Q1)(Q2)(Q3)(Q4)$ (stated in Section 1) with complete generality. As a result, we can solve the difficulties $(D1)(D2)$ (discussed in Section 1) without uncertainty.…

Functional Analysis · Mathematics 2007-05-23 Nobuhiro Asai , Izumi Kubo , Hui-Hsiung Kuo

A characterisation of the spaces $\mathcal{G}_K$ and $\mathcal{G}_K'$ introduced in Grothaus et al. (Methods Funct Anal Topol 3(2):46-64, 1997) and Potthoff and Timpel (Potential Anal 4(6):637-654, 1995) is given. A first characterisation…

Probability · Mathematics 2021-09-07 Martin Grothaus , Jan Müller , Andreas Nonnenmacher

It is natural to ask whether "positivity" of white noise operators can be discussed in some sense and characterized. To answer this question, we consider the Gel'fand triple over the Complex Gaussian space $(\ce'_c,\m_c)$, i.e.…

Functional Analysis · Mathematics 2007-05-23 Nobuhiro Asai

We describe positive generalized functionals in Gaussian Analysis. We focus on distribution spaces larger than the space of Hida Distributions. It is shown that a positive distribution is represented by a measure with specific growth of its…

Functional Analysis · Mathematics 2007-05-23 Yuri G. Kondratiev , Ludwig Streit , Werner Westerkamp

An effective formalism for white noise analysis, conceptually equivalent to Wilsonian renormalization theory, is introduced. Space-time gets represented by a boolean lattice of coarse regions, energy scales become space-time partitions by…

Mathematical Physics · Physics 2018-03-02 Horst Thaler , Rodrigo Vargas Le-Bert

Urysohn's Lemma is a crucial property of normal spaces that deals with separation of closed sets by continuous functions. It is also a fundamental ingredient in proving the Tietze Extension Theorem, another property of normal spaces that…

General Topology · Mathematics 2021-05-21 Florica C. Cîrstea

We use the effective field theory of dark energy to explore the space of modified gravity models which are capable of driving the present cosmic acceleration. We identify five universal functions of cosmic time that are enough to describe a…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Federico Piazza , Heinrich Steigerwald , Christian Marinoni

We introduce and study new transformations between two functions satisfying some basic growth properties and generalize the known lower and upper Legendre conjugate (or envelope). We also investigate how these transformations modify…

Classical Analysis and ODEs · Mathematics 2026-03-25 Gerhard Schindl

All non-negative, continuous, $\operatorname{SL}(n)$ and translation invariant valuations on the space of super-coercive, convex functions on $\mathbb{R}^n$ are classified. Furthermore, using the invariance of the function space under the…

Metric Geometry · Mathematics 2021-01-26 Fabian Mussnig

Let $m,n\geq 1$ are integers and $D$ be a domain in the $$ $\mathbb C^n$ or in the $m$-dimensional real space $\mathbb R^m$. We build positive subharmonic functions on $D$ vanishing on the boundary $\partial D$ of $D$. We use such (test)…

Complex Variables · Mathematics 2016-06-22 Bulat N. Khabibullin , Nargiza R. Tamindarova

To characterize the function space explored by neural networks (NNs) is an important aspect of learning theory. In this work, noticing that a multi-layer NN generates implicitly a hierarchy of reproducing kernel Hilbert spaces (RKHSs) -…

Machine Learning · Computer Science 2024-04-12 Zhengdao Chen

Gel'fand triples of test and generalized functionals in Gaussian spaces are constructed and characterized.

Functional Analysis · Mathematics 2007-05-23 Yu. G. Kondratiev , P. Leukert , J. Potthoff , L. Streit , W. Westerkamp

In this paper we define a new space, $LH(X,Y)$, consisting of functions $f\in X \subset Y$ (with $X,Y$ normed spaces) such that $\| f \|_X \equiv \| f \|_Y$ (where $\| \cdot \|_X$ is any norm on $X$, in general not the norm induced by $\|…

Functional Analysis · Mathematics 2019-12-13 Manuel Norman

We extend a theorem by Kleiner, stating that on a group with polynomial growth, the space of harmonic functions of polynomial of at most $k$ is finite dimensional, to the settings of locally compact groups equipped with measures with…

Group Theory · Mathematics 2023-02-03 Idan Perl , Maud Szusterman

In White Noise Analysis (WNA), various random quantities are analyzed as elements of $(S)^{\ast}$, the space of Hida distributions ([1]). Hida distributions are generalized functions of white noise, which is to be naturally viewed as the…

Mathematical Physics · Physics 2013-05-02 Takahiro Hasebe , Izumi Ojima , Hayato Saigo

Let $u\not\equiv -\infty$ and $M\not\equiv -\infty$ are two subharmonic functions in the complex plane $\mathbb C$ with the Riesz measures $\nu_u$ and $\mu_M$ such that $u(z)\leq O(|z|)$ and $M(z)\leq O(|z|)$ as $z\to \infty$. If the growth…

Complex Variables · Mathematics 2019-11-20 Anna E. Egorova , Bulat N. Khabibullin

We unveil the dynamical equivalence of field theories with non-canonical kinetic terms and canonical theories with a volume element invariant under transverse diffeomorphisms. The proof of the equivalence also reveals a subtle connection…

General Relativity and Quantum Cosmology · Physics 2026-01-26 Jose Beltrán Jiménez , Teodor Borislavov Vasilev , Darío Jaramillo-Garrido , Antonio L. Maroto , Prado Martín-Moruno
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